CN214661657U - Friction plate for wind turbine generator rotor - Google Patents

Abstract

The invention provides a friction plate for a wind turbine generator rotor, which comprises a back plate and a friction block fixed on the back plate, wherein a plurality of grooves are formed in the friction surface of the friction block, the grooves are obliquely arranged relative to the central line of the friction block, and a plurality of heat dissipation holes parallel to the central line of the friction block are uniformly formed in the friction block. According to the friction plate structure for the wind turbine generator rotor, friction dust is quickly discharged through the grooves formed in the friction surface, meanwhile, due to the fact that the heat dissipation holes are formed in the friction block, heat generated during friction operation can be quickly dissipated, the cooling effect of the friction plate is achieved, the braking effect is improved, and the wind turbine generator rotor is guaranteed to be quickly braked.

Description

Friction plate for wind turbine generator rotor

Technical Field

The invention belongs to the field of production of wind turbine generators, and particularly relates to a friction plate for a rotor of a wind turbine generator.

Background

Wind power is applied more and more highly in China as new energy, a wind power rotor braking device is an indispensable component of a wind driven generator, a friction surface of a common friction plate on the market is of a complete plane structure, so that the problem of removing friction dust is not facilitated, accumulated dust plays a lubricating role, braking slip is easily caused, and the braking effect cannot be achieved. Meanwhile, the temperature of the friction plate is rapidly increased during friction braking, and when the temperature of the friction plate is higher than 250 ℃, the friction coefficient is rapidly reduced, so that the braking effect of a generator rotor in the wind turbine generator is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a friction plate for a rotor of a wind turbine generator, so as to improve heat dissipation of the friction plate and discharge broken foam generated by friction quickly, thereby improving braking effect of the friction plate.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a friction disc for wind turbine generator system rotor, includes the backplate and fixes the clutch blocks on the backplate, many recesses have been seted up on the friction surface of clutch blocks, the relative clutch blocks central line slope of recess sets up, evenly be equipped with a plurality of louvres parallel with the clutch blocks central line separately in the clutch blocks.

Further, the width of the groove is 1-2 mm.

Furthermore, the included angle between the groove and the central line of the friction block is 65-80 degrees.

Furthermore, the diameter of the heat dissipation hole is 2-3 mm.

Further, a heat insulation layer is arranged between the friction block and the back plate.

Further, the back plate is of a steel plate structure.

Furthermore, four wear indication sheets are matched on the periphery of the friction block and fixed on the back plate.

Compared with the prior art, the friction plate for the wind turbine generator rotor has the following advantages:

according to the friction plate structure for the wind turbine generator rotor, friction dust is quickly discharged through the grooves formed in the friction surface, meanwhile, due to the fact that the heat dissipation holes are formed in the friction block, heat generated during friction operation can be quickly dissipated, the cooling effect of the friction plate is achieved, the braking effect is improved, and the generator rotor of the wind turbine generator is guaranteed to be quickly braked.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

fig. 1 is a schematic structural view of a friction plate for a rotor of a wind turbine generator set according to the embodiment;

fig. 2 is a sectional view a-a of fig. 1.

Description of reference numerals:

1-a back plate; 2-a friction block; 21-a groove; 22-heat dissipation holes; 3-a wear indicator sheet; 4-heat insulation layer.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

As shown in fig. 1 and 2, the friction plate for the rotor of the wind turbine generator comprises a back plate 1 and a friction block 2 which is fixedly bonded on the back plate 1, wherein a plurality of grooves 21 are formed on a friction surface of the friction block 2, the grooves 21 are obliquely arranged relative to a central line of the friction block 2, in the embodiment, the width of each groove 21 is 1-2mm, and an included angle between each groove 21 and the central line (namely, a symmetric line of the friction block) of the friction block 2 is 65-80 degrees. The grooves 21 formed by the plurality of inclined grooves timely discharge friction dust generated by friction, so that the cleanliness of the friction block 2 and the friction surface of the wind power generator rotor is guaranteed, and the braking effect is improved. A plurality of heat dissipation holes 22 which are respectively parallel to the central line of the friction block 2 are uniformly arranged in the friction block 2. In this embodiment, the diameter of the heat dissipation hole 22 is 2-3 mm. The heat that the radiating hole produced when rubbing operation gives off fast reduces the 2 temperatures of clutch blocks, guarantees 2 coefficient of friction of clutch blocks, and then guarantees the friction braking effect.

In this embodiment, a heat insulation layer 4 is disposed between the friction block 2 and the back plate 1.

In this embodiment, the back plate 1 is a steel plate structure.

In this embodiment, four wear indication sheets 3 are matched around the friction block 2, and the wear indication sheets 3 are fixed on the back plate 1. In this embodiment, the top of the wear indicator piece 3 is higher than the heat dissipation hole 22. Through judging the relative wear indication piece 3 top surface position of rubbing block 2 friction surface, judge whether rubbing block 2 friction surface wears to extreme position to in time change rubbing block.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims (7)

1. The utility model provides a friction disc for wind turbine generator system rotor which characterized in that: including backplate (1) and fix clutch blocks (2) on backplate (1), many recesses (21) have been seted up on the friction surface of clutch blocks (2), recess (21) relative clutch blocks (2) central line slope sets up, evenly be equipped with a plurality of louvres (22) parallel with clutch blocks (2) central line separately in clutch blocks (2).

2. The friction plate for the wind turbine generator rotor according to claim 1, wherein: the width of the groove (21) is 1-2 mm.

3. The friction plate for the wind turbine generator rotor according to claim 1, wherein: the included angle between the groove (21) and the central line of the friction block (2) is 65-80 degrees.

4. The friction plate for the wind turbine generator rotor according to claim 1, wherein: the diameter of the heat dissipation hole (22) is 2-3 mm.

5. The friction plate for the wind turbine generator rotor according to claim 1, wherein: and a heat insulation layer (4) is arranged between the friction block (2) and the back plate (1).

6. The friction plate for the wind turbine generator rotor according to claim 1, wherein: the back plate (1) is of a steel plate structure.

7. The friction plate for the wind turbine generator rotor according to claim 1, wherein: the periphery of the friction block (2) is matched with four wear indication sheets (3), and the wear indication sheets (3) are fixed on the back plate (1).

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